An in-situ calibration device for solid rocket motor ground rotation test

Abstract

The invention relates to a solid rocket engine ground rotation test in-situ calibration device. The solid rocket motor ground rotation test in-situ calibration device comprises a switching device, a universal flexible component, a standard sensor, a force source loading device and a load bearing pier, wherein the switching device, the universal flexible component, the standard sensor, the force source loading device and the load bearing pier are coaxially and sequentially connected with one another; a standard simulation thrust is provided through the force source loading device; the standard sensor is used for reading the value of the standard simulation thrust; the standard simulation thrust is transmitted to a solid rocket engine through the universal flexible component and the switching device; and the value of the standard simulation thrust is compared with the measurement value of the working sensor of a solid rocket engine rotation test device, so that calibration can be carried out. Compared with an existing calibration device, the solid rocket engine ground rotation test in-situ calibration device is simple in structure, can effectively transmit the standard simulation thrust to the solid rocket engine under a condition that the solid rocket engine is rotating, and can achieve high-precision calibration of the solid rocket engine rotation test device.

Description

technical field [0001] The invention relates to a calibration device, in particular to an in-situ calibration device for a ground rotation test of a solid rocket motor. Background technique [0002] With the development and demand of new types of weapons and equipment, more and more solid rocket motors are required to simulate the rotation state during flight for ground static tests to obtain more accurate and realistic flight ballistic performance data. Previous test studies have shown that: Solid rocket motor ground high-speed rotation test devices generally have many shortcomings such as unstable engine rotation axis, large platform vibration, the highest test accuracy can only reach 3%, the accuracy is too low, and the thrust loss is large. During the ground rotation test of the solid rocket motor, it is required to accurately test the thrust total impulse during the test stage. However, due to the large fluctuation of the test thrust, the precision and accuracy of the t...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to solve the problem of calibrating the solid rocket motor ground rotation test device, and provide an in-situ calibration device for the solid rocket motor ground rotation test to improve the test accuracy of the solid rocket motor ground rotation test

Images